Lubricator



(No Model.)

M. S GABBLL.

LUBRICATOR.

VIM/'TOR Unirse rarrls Farm-Jr f trice.

MILTON S. CABELL, OF QUIIICY, ILLINOIS.

LUBRECATOR.

SPECIFICATION forming part of Letters Patent No. 297,567, dated April29, 1884.-.

(No model.)

To @ZZ whom it may concern,.-

Be it known that I, MILTON S. CABELL, of Quincy, in the county of Adamsand State of Illinois, have invented certain new and useful Improvementsin Lubricators;` and I do hereby declare the following to be a full,clear, and exact description of the same, reference being had to theaccompanying drawings, forming a part of this specification, and to theigures and letters of reference marked thereon. y

My present invention relates to that class of oil-cups or lubricatorswherein the lubricant is fed by gravity and delivered in drops 5 and itconsists in certainimprovements as hereinafter described, and pointedout in the claims, the same being especially applicable to andconstituting an improvement upon lubricators such as described in PatentNo. 289,888, December l1, 1888. ,f

In the accompanying drawings, Figure l is side elevation, and Fig. 2 asectional view, of a lubrcator containing an embodiment of my presentinvention, as will hereinafter appear. Fig. 3 shows the vent or valve.

Similar letters of reference indicate like parts.

` A is the oil cup or reservoir, B the hollow stem, provided with thetapered portion b, seat b, and vent-opening b2. C is the valvestem,whose tapered extremity co-operates with the seat b. These parts arearranged and combined for operation substantially in the mannerdescribed in my prior patent.

To the end of the hollow stem B, through which steam is admitted to ventthe cup A, is attached a smaller tube or prolongation, D, which passesbeyond the valve-seat c and projects into the fitting E in line with thesightopenings F. Vith the device as above constructed, the cup is ventedthrough the stem B, and the oil permitted to trickle down the sides ofthe extension D, from whence it is delivered in the form of drops. Thetting E, into and through which the oil is delivered, is T shape, andthe oil-cup is screwed or otherwise attached to it, as shown in thedrawings. The horizontal extensions or branches c e of the fitting aremade tubular, and each Jthereof, of the hollow stem through which the isfurnished with glass, e, secured in place by 5o a screwcap or otherwise.As thus constructed, when the oil-cup is applied the end D of the stem Bis brought in line with the opening through the extensions e', and thefeeding can be observed by looking through 5 5 the glasses.

It has been found in practice that unless some means are provided formaintaining or permitting a circulation of steam in the iitting, theproper feeding and delivery of the 6o oil will not be obtained; and toovercome this difliculty I have provided a vent-tube, G, for the tting,either made integral with the fitting E, as shown, or a separate pieceof tubing inserted in or applied to the tting, and extending from at ornear the bottom to a point near the top of the fitting. A valve, H, isapplied to the fitting below the sight-openings, and it is provided withtwo passagesa large one, h, for the passage of the oil, and 7o a smalleropening, h, for the vent. By the use of this valve both passages in thefitting can be simultaneously opened or closed, to provide for shuttingoff the steam in case of accident or the removal of the cup.

If desired, a separate valve, I, may be applied to the vent-tube, asshown in Fig. 3, for closing or adjusting the vent, and a separate valvemay in like manner be used for closing the oil-passage.

Having thus described my invention, what I claim as new is- 1. Thecombination, with the oil-cup having the valve-seat and opening at thebottom cup is vented, having the elongated tip or eX- tension projectingthrough the valve seat opening down into the chamber of the tting, andthe-fitting having the glasses located in line with the tip of theelongated extension, whereby when the valve is raised slightly from itsseat the oil will escape through the valve-seat opening, run down theelongated tip into the chamber of the iitting, and escape from said tipin the form of drops, which are visible through the glasses,substantially as described.

2. In combination with. the `oil-cup, projecting hollow spindle,horizontal sigl1t-tube, Vent-tube, the Valve for closing or regulatingand vertical delivery-tube, of the vent-tube theypassage of steamthrough the vent-tube, opening into the delivery-tube at both topsubstantially as described. and bottom, substantially as described.

MILTON S. CABELL.

5 3. In a lubrcator such as described, and in combination with thefeeding devices, the tting containing the sight-openings, and theWitnesses: Y

EDWARD MEAD, EDUARD BOUMAN.

